319047797 has 4 divisors (see below), whose sum is σ = 325836096. Its totient is φ = 312259500.

The previous prime is 319047787. The next prime is 319047847. The reversal of 319047797 is 797740913.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 319047797 - 2⁸ = 319047541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 6788251 = 319047797 / (3 + 1 + 9 + 0 + 4 + 7 + 7 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319047727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3394079 + ... + 3394172.

It is an arithmetic number, because the mean of its divisors is an integer number (81459024).

Almost surely, 2^319047797 is an apocalyptic number.

It is an amenable number.

319047797 is a deficient number, since it is larger than the sum of its proper divisors (6788299).

319047797 is an equidigital number, since it uses as much as digits as its factorization.

319047797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788298.

The product of its (nonzero) digits is 333396, while the sum is 47.

The square root of 319047797 is about 17861.9091084912. The cubic root of 319047797 is about 683.3112695368.

The spelling of 319047797 in words is "three hundred nineteen million, forty-seven thousand, seven hundred ninety-seven".